STD 11 - 11. photosynthesis in higher plants — NEET STD 11 Science — Question

$(a)$ In roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii.
$(b)$ Conjoint closed vascular bundles do not possess cambium
$(c)$ In open vascular bundles, cambium is present in between xylem and phloem
$(d)$ The vascular bundles of dicotyledonous stem possess endarch protoxylem
$(e)$ In monocotyledonous root, usually there are more than six xylem bundles present.

Choose the correct answer from the options given below:

$I.$ Chromosomal material condenses to form compact mitotic chromosomes

$II.$ The assembly of mitotic spindle is initiated by the microtubules

$III.$ Cells do not show organelles when viewed under the prophase

$IV.$ The nucleolus or nucleoli degenerate completely